Simulator of Visual Impairments is a Chrome extension developed by airadavometra. It is a free tool that helps users check the accessibility of their websites and understand how to improve the user experience for individuals with visual impairments.

With this extension, users can simulate various visual impairments to test the accessibility of their web pages. The extension offers three main filters:

1. Myopia Filter: Users can configure the diopters to check if their web pages are accessible for people with blurred vision. They can pay attention to important texts with small font sizes and adjust the root font size to see how the page scales.

2. Color Blindness Filter: Different filters can be applied to check if the web page is still usable for color blind individuals. This is particularly important if important information is only conveyed through color.

3. Blindness Filter: This filter simulates blindness, and users are encouraged to use a screen reader to test their web pages properly. However, applying the filter alone can provide a more accurate experience.

For manual testing, users are advised to repeat their base test cases with the filters on. If the scenarios are successful, it indicates that the web page is moving in the right direction. The extension ensures that all necessary navigation information is accessible and that the user experience is clear.

Simulator of Visual Impairments is a valuable tool for developers, designers, and anyone interested in web accessibility. It can be used for testing purposes or to educate oneself and colleagues on the challenges faced by individuals with visual impairments.